tmnxOamTrProbeHistoryResponse 1.3.6.1.4.1.6527.3.1.2.11.2.5.1.5

The amount of time measured in microseconds from when a probe was sent to when its response was received, two-way time, or when it timed out. The value of this object is reported as 0 when it is not possible to transmit a probe.